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Balance leads
#1
I want to use a active balancer to ballance my 14s packs,but does the balance leads have to be the same length or does it not matter?
I could not find the answer to that maybe you guys have a answer Big Grin
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#2
Depends on the balancer

And why do you need active balancer? Do you have that uneven packs that you need them? Why not rebuild the packs instead so you dont have to spend the money on them and instead just have a proper BMS. Preferable one that can tell you which pack is weaker?

Most active balancers HIDES the issues instead. And for most people it takes 10+ years before they pay off. Some even wastes more energy than you save....
The Ultimate DIY Solar and build place
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
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#3
Hi Daromer,

Yes i watched your video Big Grin  
The packs that i've build are 500mah(min) to 1 ah(max) between them.
Yes a propper BMS,well...…. i like Batrium but it is to expencive if you ask me and my wallet Undecided  i found a active balancer that  some people liked it and how it worked but if you have a better idea Big Grin 
But in general does the ballance leads have to be the same length or does it not matter?
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#4
Lengtj depends on the balancer.
And No you dont need it. Just get a proper bms and No you dont need batrium. You need a bms. Start with that and use the balancer built in first.
barry and Korishan like this post
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
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#5
If your packs drift enough that you need an active balancer to correct it then you have a problem with the packs.
Running off solar, DIY & electronics fan :-)
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#6
Voltage sensing occurs at essentially zero current, meaning voltage loss is negligible, so the gauge and length are not important.
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